← GlossaryWas this page helpful?
What does "middleware" mean in programming?
middleware is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
Software that sits between two systems or layers and processes requests before they reach their destination. In web frameworks, middleware functions can authenticate, log, or transform requests.
Example
"The authentication middleware checks the JWT token before the request reaches the route handler."
Can you put this sentence in the right order?
Tap the words to place them here
Keep building your technical English
You just looked up what this word means. Lingua-e turns vocabulary like this into full practice: fill-in-the-blanks, listening, and real developer conversations.
Practice this for free